We actually plan to be able to do this! I am a OneNote convert and was able to convert everything to Trilium with quite minimal formatting issues.

For reference, I have over 300,000 notes in Trilium, and it is runs smoothly 👍

I’ve never quite understood why this is such a non-starter for most people. I just simply set up a script to export my Trilium notes to Nextcloud as flat files so I can still read my notes anywhere even without a Trilium client. Trilium also allows you to edit the notes with an external editor, and then you can just re-import the note to update the note in Trilium.

I think note cloning is unique - note clones were a game changer for me. Directories are notes too so you can add content to them just like any other note. The biggest advantage for me: its open source Server syncing is free without needing to use third party solutions.